+ get rid of "install_multi"
+ move "SDK" and "Test" from the main name to the name suffix;
  use same position as "helppack" and "langpack"
+ move the content type identification "arc/deb/rpm" just
  after the <arch> string
+ use "archive" instead of the unclear "arc" content identification

The new names look like:

    LibreOffice_<version>_<os>_<arch>_<content>
    LibreOffice_<version>_<os>_<arch>_<content>_helppack_<lang>
    LibreOffice_<version>_<os>_<arch>_<content>_langpack_<lang>
    LibreOffice_<version>_<os>_<arch>_<content>_sdk
    LibreOffice_<version>_<os>_<arch>_<content>_test

, where the string "_<content>" is one of "_archive", "_deb", "_rpm".
This string is missing for .msi, and .dmg installers because
the content is described by the filename suffix.

Conflicts:
	Makefile.in

Change-Id: Ifecf947ba32e3381ef284d433096f7b37a02e9f5